sl@0: /*
sl@0: * Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description:
sl@0: *
sl@0: */
sl@0: 
sl@0: #ifndef __MMF_PCM16_TO_PCMU8_HW_DEVICE_H__
sl@0: #define __MMF_PCM16_TO_PCMU8_HW_DEVICE_H__
sl@0: 
sl@0: #include <mmf/server/mmfswcodecwrapper.h>
sl@0: #include "MMFAudioCodec.h"
sl@0: 
sl@0: #include "MMFAudioS16ToU8PcmCodec.h"
sl@0: 
sl@0: const TInt KPCM16ToPCMU8SourceBufferSize = 0x2000;
sl@0: const TInt KPCM16ToPCMU8SinkBufferSize = 0x1000; //sink buffer length is half source
sl@0: 
sl@0: /*
sl@0: *
sl@0: * class CMMFPcm16ToPcmU8HwDevice
sl@0: *
sl@0: */
sl@0: class CMMFPcm16ToPcmU8HwDevice : public CMMFSwCodecWrapper
sl@0: 	{
sl@0: public:
sl@0: 	static  CMMFPcm16ToPcmU8HwDevice* NewL();
sl@0: 	virtual CMMFSwCodec& Codec();
sl@0: 	~CMMFPcm16ToPcmU8HwDevice(); 
sl@0: private:
sl@0: 	void ConstructL();
sl@0: 	};
sl@0: 
sl@0: /*
sl@0: *
sl@0: * class CMMFPcm16ToPcmU8Codec converts Pcm16 to Pcm unsigned 8 bit
sl@0: *
sl@0: */
sl@0: class CMMFPcm16ToPcmU8Codec : public CMMFSwCodec
sl@0: 	{
sl@0: public:
sl@0: 	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
sl@0: 	virtual TUint SourceBufferSize() {return KPCM16ToPCMU8SourceBufferSize;};
sl@0: 	virtual TUint SinkBufferSize() {return KPCM16ToPCMU8SinkBufferSize;};
sl@0: private:
sl@0: 	TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
sl@0: private:
sl@0: 	TMMFAudioS16ToU8PcmCodec iAudioS16ToU8Pcm ;
sl@0: 	};
sl@0: 
sl@0: #endif //__MMF_PCMS16_TO_PCMS8_HW_DEVICE_H__
sl@0: